What does a TSH level of 10 mean?
Most labs say that a normal serum TSH level is somewhere between 0.4 to 4.0 mIU/L, and that a TSH level of 10 mIU/L or higher is indicative of hypothyroidism. A TSH level of 4.5 to 10 mIU/L is considered indicative of subclinical hypothyroidism.
What are acceptable levels for thyroid?
The normal range of TSH levels in adults is between 0.4 to 4.0 mIU/L (milli-international units per liter). Some research suggests that this range should actually be more like 0.45 to 2.5 mIU/L.
Is TSH level 10 high?
What are the symptoms of high thyroid?
Symptoms of an overactive thyroid can include:
- nervousness, anxiety and irritability.
- hyperactivity – you may find it hard to stay still and have a lot of nervous energy.
- mood swings.
- difficulty sleeping.
- feeling tired all the time.
- sensitivity to heat.
- muscle weakness.
- diarrhoea.
What is a high TSH level in a woman?
An optimal TSH level in a woman is 0.4-2.5 mIU/L. For pregnant women, that upper limit is stricter than if you are not pregnant. A dangerously high level of TSH is above 5.0 mIU/L. High TSH means low thyroid hormones.
Is high TSH harmful?
“Our study shows that a gradual increase in TSH occurs during healthy aging and that mild increases in TSH are not harmful in the oldest old,” she says. “Beyond that, we found that higher levels of thyroid hormone are associated with increased mortality.
What causes thyroid levels to be high?
An increased level of iodine in your body can cause your thyroid to produce excess thyroid hormones. This can occasionally happen if you’re taking medicine that contains iodine, such as amiodarone, which is sometimes used to control an irregular heartbeat (arrhythmia).
What does a TSH level of 20 mean?
a TSH level > 20 milli-International Units/L in association with a low free thyroxine (T4) confirms the diagnosis of hypothyroidism. In some cases, levels may be as high as 200 milli-International Units/L.